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| 11.5-12.5Gb/s 1:16 Demultiplexer with Clock Recovery Physical Layer Products VSC8184 Product Brief Features: * Continuous 11.5 to 12.5Gb/s Lock-Range * Low Power 1.6W (Typ) * +3.3V Single Supply * Single-End and Differential Data Input * 50 mV Input Sensitivity (Min) * Slicing Threshold Voltage Offset Control * LVDS Outputs * 180-195 or 719-781 MHz Reference Clock * Reliable 90-Ball BGA Package * Up to 90C Case Temperature * On Chip Termination for all LVDS Inputs General Description The VCS8184 combines a clock recovery unit and data retiming with a 1:16 Demultiplexer on a single chip to directly generate 16-bit wide data from an incoming 11.5Gb/s to 12.5Gb/s data stream, for use in SONET STS-192/ SDH STM-64 systems. An on-chip Phase Locked Loop (PLL) with Voltage Controlled Oscillator (VCO) generates a 11.5GHz to 12.5GHz clock, which remains phase locked to the incoming data. The incoming data is retimed and Demultiplexer into 16 parallel outputs. It features a highly flexible reference clock input scheme. The user can select between 180-195MHz or 719-781MHz PECL reference clock inputs. The input serial data sampling point voltage threshold can be adjusted. Additional features include a parity bit (PARITY) that is clocked out with the 16 parallel data, Bit Order Swap (BITORDER) and Data Polarity Invert (DINVERT). To assist in monitoring device operation a Loss-of-Lock (LOLN) alarm and no reference clock (NOREFN) alarm are provided. The device is packaged in a modified 90ball, Ball Grid Array (BGA). Specifications: * 11.5 to 12.5 Gb/s Continuous Lock-Range Operation * 50 mV Input Sensitivity * Supply Voltage: 3.3V (Typ) * Total Power Dissipation: 1.6W (Typ) * 15x15mm Low Profile 90 Ball TBGA (Taped BGA) Package * Operating Temperature Range: 0C to +90C (case) www.vitesse.com Physical Layer Products 11.5-12.5Gb/s 1:16 Demultiplexer with Clock Recovery Product Brief VSC8184 Physical Layer Products Benefits: * Provides High-speed Integrated Clock and Data Recovery from 11.5 to 12.5Gb/s * Provides Lowest Power Solution in its Performance Class * Pin-compatible Path to 9.910.7Gb/s Product (VSC8174) * Thermal Expansion of TBGA Package is Matched to the PC Board for High Reliability * Data Polarity Invert and Bit Order Swap for Ease of Layout * Loss-of-Lock and No Reference Clock to Assist in Monitoring Device Operation * Parity Bit Calculation * Integrated Clock and Data Recovery VSC8184 Block Diagram PARITY+ PARITY- D0+ DINVERT D0- OFF+ VTERM DATA+ DATA1:16 D1+ D1- OFF- D14+ D14- D15+ D15- CK16A+ CLOCK RECOVERY TIMING CK16AGENERATOR CK16B+ CK16BREFTERM REFCK+ REFCKPLL LOSS OF LOCK DETECT BITORDER Applications: * Advanced Forward Error Correction (FEC) * Return-to-Zero Transmission Applications * Re-Timing Laser Drivers * Ultra-Long Haul Systems * SONET/SDH Networking * DWDM Systems * Telecommunications Transmission Systems * Test Equipment REFSEL[0:1] LCKREFN LOLN NOREFN INHIBITN RESETN For more information on Vitesse Products visit the Vitesse web site at www.vitesse.com or contact Vitesse Sales at (800) VITESSE or sales@vitesse.com www.vitesse.com (c) Copyright 2000 Vitesse Semiconductor Corporation and the Vitesse logo are all registered trademarks of Vitesse Semiconductor Corp;oration |
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